Synthesis of novel safe organosilicon functionalized carbonate as electrolyte and its application in lithium-ion batteries

WANG Jinglun; QIN Xueying; ZHAO Xinyue; ZHANG Lingzhi

doi:10.3969/j.issn.0438-1157.2013.09.050

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Synthesis of novel safe organosilicon functionalized carbonate as electrolyte and its application in lithium-ion batteries

更新时间：2025-12-10

- Synthesis of novel safe organosilicon functionalized carbonate as electrolyte and its application in lithium-ion batteries
- CIESC Journal Issue 9, Pages: 3454-3459(2013)
- 作者机构：
  
  1. 中国科学院可再生能源重点实验室, 中国科学院广州能源研究所,广东,广州,510640
  2. 中国科学院大学,北京,100039
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.09.050
  CLC： 646
- Online First：05 September 2013，
  
  Published：05 September 2013
- 稿件说明：
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WANG Jinglun, QIN Xueying, ZHAO Xinyue, et al. Synthesis of novel safe organosilicon functionalized carbonate as electrolyte and its application in lithium-ion batteries[J]. CIESC Journal, 2013, (9): 3454-3459.
DOI：

WANG Jinglun, QIN Xueying, ZHAO Xinyue, et al. Synthesis of novel safe organosilicon functionalized carbonate as electrolyte and its application in lithium-ion batteries[J]. CIESC Journal, 2013, (9): 3454-3459. DOI： 10.3969/j.issn.0438-1157.2013.09.050.

摘要

设计合成了一种新型三甲基硅取代碳酸丙烯酯化合物(TMSPC)

并对其化学结构、热性能、离子电导率、电化学窗口和燃烧性能进行了详细的表征。通过与商业电解液(1 mol·L-1 LiPF6/EC:DEC=1:1

体积比)互配组成电解液

30%(vol) TMSPC的添加能大大降低电解液的燃烧速率。同时

对LiFeO4/Li半电池进行测试

在0.2 C倍率条件下

30%(vol) TMSPC的添加也能提高电池的循环性

未添加与添加TMSPC的LiFeO4/Li 在110个循环后的容量分别为106 mA·h·g-1和109 mA·h·g-1

相应的容量保持率为81%和87%。

Abstract

A novel high safe trimethylsilyl substituted propylene carbonate(TMSPC)was designed and synthesized as electrolyte for lithium-ion batteries.Its physicochemical properties

such as thermal property

ionic conductivity

electrochemical window

and flammability were investigated in detail.With adding 30%(vol) TMSPC into the electrolyte of 1 mol·L-1 LiPF6/EC:DEC(1:1

vol.ratio)

the propagation rate could be reduced significantly.LiFeO4/Li half cell test showed that the cycling performance could be improved with 30%(vol) TMSPC additions in the electrolyte of 1 mol·L-1 LiPF6/EC:DEC(1:1

vol.ratio)

exhibiting a specific capacity of 109 mA·h·g-1 and a capacity retention of 87% as compared with 106 mA·h·g-1 and 81% for the base electrolyte at 0.2 C rate after 110 cycles.

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